Disclosed herein are green tea plant material extracts, and methods of using the extracts, comprising at least one green tea catechin selected from the group consisting of epi-gallocatechin, catechin, epicatechin, epigallocatechin-3-gallate, gallocatechin gallate, epicatechin-3-gallate, catechin gallate, and gallocatechin, wherein the compositions of the disclosure provide greater bioavailability of at least one green tea catechin.
